Electric railway.



Patented Nov. 28, I899.

UGTL 07 E. WARWICK.

ELECTRIC RAILWAY.

(Application filed Mai. 18, 1899.) (No Model.)

ms "cams Perms co, Pump-Lima. wxsumm'ou, a. a

Imam

MN. EXAM.

UNITED STATES PATENT OFFicE.

ELIZABETH WARWICK, on CHICAGO, ILLINOIS.

ELECTRIC RAILWAY.

SPECIFICATION forming part of Letters Patent No. 638,155, dated November 28, 1899.

Application filed March 18,1899. Serial No. 709,661. (No model.)

a conductor of sufficient sectional area to carry the whole current for working the line of railway or tramway to be used without of necessity requiring the employment of feed wires or conductors and at the same time keeping the resistance so low that there is practically no waste of energy.

Another object is to enable the conductor to be supported in a very efficient and permanent manner, and at the same time permit of its free expansion and contraction without interfereing with the electrical continuity.

thereof.

In order that the invention may be clearly understood and readily carried into effect, I will proceed to describe the same more fully by aid of the accompanying drawings, in which- Figure 1 is a longitudinal section; and Fig. 2 a tranverse section on the line 1 1 of Fig. 1, showing the means I employ for supporting the conductor applied to a conduit system.

A A are the line conductors, B B the yokes, and O O the slot-rails, between which the trolley-leg on the car projects downwardly to reach the conductors A, as is well understood. Each of the said conductors is preferably made of hard drawn copper and of the crosssectional shape indicated in the drawings. The said yokes are formed with lateral bracketsbb, to each of which is fitteda detachable clamping block or cover b. Between such bracket and clamping-block is arranged an insulating-block b which is horizontally divided into two parts, so as to permit of the conductor being readily placed in position between them.

b b are bolts extending through the bracket and clamping-block and serving to tightly clamp the parts together without, however, exerting undue strain thereon. The said insulating-blocks have flanges 19 which engage with corresponding recesses in the bracket and cover, so as to prevent the said blocks from shifting laterally. It will be obvious that instead of the insulating-blocks being clamped to the bracket on the yoke they may be clamped to suitable projections or supports specially provided for them in the conduit.

The conductors are in cross-section of tapered or other suitable formation, and the extent to which they protrude from the insulating-blocks is advantageously made sufficient to permit of the trolley-wheel to run against the side or top or bottom surface thereof. I do not, however, confine myself to this specific form of conductor.

WhatI claim is- I 1. In a conduit system of electric railways, the combination of a line conductor, abracket substantially parallel therewith, a detachable cover, insulating-blocks held between the bracket and cover and recessed to receive the conductor, and means upon opposite sides of the insulating-blocks for securing the bracket, cover, blocks and conductor in position, as set forth.

2. In a conduit system of electric railways, the combination of a yoke, a lateral bracket thereon, having a recess, a cover with a corresponding recess, insulating blocks with flanges disposed in said recesses, a line conductor held in recesses in said blocks and extended beyond the same, and means passed through the bracket and cover for holding all of said parts together, as set forth.

3. In aconduit system for-electric railways, the. combination of a yoke provided with lateral bracket havinga recess in its upper face, a reversely-arranged cover with similar recessin its under face, insulating-blocks hav ing flanges seated in said receses and provided with recesses at their outer meeting faces forming an undercut recess to receive the line conductor, the tapered line conductor seated I my hand, in presence of two subscribing" witin said recess, and bolts passed through the messes this, 7th day of March, 1899. cover and bracket independent of the insn I lating-blocks and serving to hold all of said ELIZABETH Q 5 parts firmly together, substantially as de- Witnesses:

scribed. Y JOSEPH COLLINS, In testimony whereof I have hereunto set FRED O. HARRIS. 

